ATMOS ENERGY CORP (ATO) — Institutional Holders, Q2 2026

1,049 institutional investment managers reported a ATO position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $28.0B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← ATO stock profile

ATO in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

123

Added to

415

Trimmed

343

Sold out

Biggest buyers

Qube Research & Technologies LtdAdded · +2,053,901 sh+$353.8M
AQR CAPITAL MANAGEMENTAdded · +1,551,127 sh+$267.2M
Point72 Asset Management, L.P.New · +1,361,162 sh+$234.5M
CITADEL ADVISORSAdded · +984,801 sh+$169.7M
SG Americas SecuritiesAdded · +669,084 sh+$115.3M

Biggest sellers

Aristotle Capital ManagementTrimmed · -4,832,579 sh-$832.5M
Capital Research Global InvestorsTrimmed · -2,501,987 sh-$431.0M
BlackRockTrimmed · -2,214,399 sh-$381.5M
WELLINGTON MANAGEMENT GROUP LLPTrimmed · -465,684 sh-$80.2M
SEI INVESTMENTSTrimmed · -320,359 sh-$55.2M

ATO 13F holders ranked 1–100 of 1,049

Institutional investors reporting a position in ATMOS ENERGY CORP on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	BlackRock#1 · 15,237,564 sh	15,237,564	$2.6B	0.04%	-12.7%
2	STATE STREET#2 · 11,380,060 sh	11,380,060	$2.0B	0.06%	+0.1%
3	VANGUARD CAPITAL MANAGEMENT#3 · 10,885,153 sh	10,885,153	$1.9B	0.04%	+1.4%
4	VANGUARD PORTFOLIO MANAGEMENT#4 · 9,360,135 sh	9,360,135	$1.6B	0.07%	+0.8%
5	WELLINGTON MANAGEMENT GROUP LLP#5 · 9,185,788 sh	9,185,788	$1.6B	0.27%	-4.8%
6	Capital International Investors#6 · 7,483,012 sh	7,483,012	$1.3B	0.27%	+2.1%
7	GEODE CAPITAL MANAGEMENT#7 · 4,489,277 sh	4,489,277	$770.3M	0.04%	+3.5%
8	BANK OF AMERICA#8 · 4,180,718 sh	4,180,718	$720.2M	0.05%	-0.4%
9	Invesco Ltd.#9 · 3,173,775 sh	3,173,775	$546.7M	0.04%	+5.5%
10	MORGAN STANLEY#10 · 2,863,719 sh	2,863,719	$493.3M	0.03%	-4.6%
11	DEUTSCHE BANK AG\#11 · 2,505,816 sh	2,505,816	$431.7M	0.13%	-1.6%
12	PRICE T ROWE ASSOCIATES#12 · 2,481,649 sh	2,481,649	$427.5M	0.04%	-8.6%
13	AQR CAPITAL MANAGEMENT#13 · 2,373,903 sh	2,373,903	$409.0M	0.14%	+188.5%
14	GOLDMAN SACHS GROUP#14 · 2,165,784 sh	2,165,784	$373.1M	0.03%	+11.9%
15	Qube Research & Technologies Ltd#15 · 2,136,532 sh	2,136,532	$368.1M	0.34%	+2485.6%
16	NORGES BANK#16 · 2,079,227 sh	2,079,227	$358.2M	0.04%	—
17	MASSACHUSETTS FINANCIAL SERVICES#17 · 1,842,583 sh	1,842,583	$321.4M	0.10%	+3.9%
18	Amundi#18 · 1,823,714 sh	1,823,714	$314.2M	0.08%	+40.0%
19	CITADEL ADVISORS#19 · 1,736,405 sh	1,736,405	$299.1M	0.03%	+131.0%
20	Legal & General Group Plc#20 · 1,605,373 sh	1,605,373	$276.6M	0.06%	-0.7%
21	Capital Research Global Investors#21 · 1,508,563 sh	1,508,563	$259.9M	0.04%	-62.4%
22	DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt#22 · 1,491,483 sh	1,491,483	$256.9M	0.20%	+0.1%
23	NORTHERN#23 · 1,393,267 sh	1,393,267	$240.0M	0.03%	-10.1%
24	Point72 Asset Management, L.P.#24 · 1,361,162 sh	1,361,162	$234.5M	0.26%	New
25	RAYMOND JAMES FINANCIAL#25 · 1,271,473 sh	1,271,473	$219.0M	0.06%	+5.4%
26	Pictet Asset Management Holding SA#26 · 1,270,400 sh	1,270,400	$218.9M	0.21%	+8.1%
27	WELLS FARGO & COMPANY#27 · 1,204,326 sh	1,204,326	$207.5M	0.03%	-9.4%
28	GQG Partners#28 · 1,175,136 sh	1,175,136	$202.4M	0.38%	+32.5%
29	Perpetual Ltd#29 · 1,133,323 sh	1,133,323	$195.2M	—	-8.6%
30	UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#30 · 1,098,374 sh	1,098,374	$189.2M	0.03%	+3.3%
31	SFMG#31 · 1,060,369 sh	1,060,369	$182.7M	11.00%	+0.2%
32	CHARLES SCHWAB INVESTMENT MANAGEMENT#32 · 1,059,660 sh	1,059,660	$182.5M	0.02%	+2.2%
33	CBRE INVESTMENT MANAGEMENT LISTED REAL ASSETS#33 · 999,550 sh	999,550	$172.2M	2.40%	+31.9%
34	AMERICAN CENTURY COMPANIES#34 · 998,021 sh	998,021	$171.9M	0.08%	-0.4%
35	VANGUARD FIDUCIARY#35 · 936,822 sh	936,822	$161.4M	0.04%	+0.7%
36	ProShare Advisors#36 · 924,825 sh	924,825	$159.3M	0.23%	-9.7%
37	Nuveen#37 · 896,066 sh	896,066	$154.4M	0.04%	-5.4%
38	PNC FINANCIAL SERVICES GROUP#38 · 884,648 sh	884,648	$152.4M	0.08%	-0.2%
39	Bank of New York Mellon#39 · 877,494 sh	877,494	$151.2M	0.02%	-1.7%
40	DIMENSIONAL FUND ADVISORS#40 · 768,834 sh	768,834	$132.5M	0.02%	+2.1%
41	SG Americas Securities#41 · 739,939 sh	739,939	$127.5M	0.07%	+944.3%
42	UBS Group AG#42 · 713,094 sh	713,094	$122.8M	0.02%	-0.8%
43	SILVERCREST ASSET MANAGEMENT GROUP#43 · 682,414 sh	682,414	$117.6M	0.77%	-3.5%
44	HSBC PLC#44 · 672,843 sh	672,843	$116.0M	0.05%	-13.8%
45	FMR#45 · 660,432 sh	660,432	$113.8M	<0.01%	+426.3%
46	COHEN & STEERS#46 · 641,326 sh	641,326	$110.5M	0.17%	-19.9%
47	DUFF & PHELPS INVESTMENT MANAGEMENT#47 · 637,725 sh	637,725	$109.9M	1.04%	+4.9%
48	Neuberger Berman Group#48 · 627,569 sh	627,569	$108.2M	0.07%	+4.4%
49	BNP PARIBAS FINANCIAL MARKETS#49 · 608,876 sh	608,876	$104.9M	0.04%	-27.1%
50	ENVESTNET ASSET MANAGEMENT#50 · 603,994 sh	603,994	$104.1M	0.02%	-10.5%
51	ONTARIO TEACHERS PENSION PLAN BOARD#51 · 586,175 sh	586,175	$101.0M	0.64%	New
52	JPMORGAN CHASE#52 · 560,812 sh	560,812	$98.1M	<0.01%	-29.6%
53	PFA Pension, Forsikringsaktieselskab#53 · 565,963 sh	565,963	$97.5M	0.25%	-15.3%
54	Chevy Chase#54 · 521,671 sh	521,671	$89.9M	0.23%	+0.6%
55	Nilsine Partners#55 · 485,268 sh	485,268	$83.6M	5.78%	-1.2%
56	HUNTINGTON NATIONAL BANK#56 · 476,123 sh	476,123	$82.0M	0.40%	+1.7%
57	Swiss National Bank#57 · 466,600 sh	466,600	$80.4M	0.04%	-1.7%
58	RENAISSANCE TECHNOLOGIES#58 · 447,900 sh	447,900	$77.2M	0.11%	+168.5%
59	Clark Capital Management Group#59 · 435,310 sh	435,310	$75.0M	0.41%	+0.7%
60	EARNEST PARTNERS#60 · 429,513 sh	429,513	$74.0M	0.27%	+1.6%
61	Mitsubishi UFJ Asset Management , Ltd.#61 · 428,952 sh	428,952	$73.9M	0.04%	+8.0%
62	PRINCIPAL FINANCIAL GROUP#62 · 427,047 sh	427,047	$73.6M	0.04%	-15.8%
63	Energy Income Partners#63 · 410,650 sh	410,650	$70.7M	1.11%	+13.0%
64	Sumitomo Mitsui#64 · 401,601 sh	401,601	$69.2M	0.04%	+1.8%
65	JANE STREET GROUP#65 · 396,719 sh	396,719	$68.3M	<0.01%	+3259.2%
66	MANUFACTURERS LIFE INSURANCE COMPANY, THE#66 · 387,012 sh	387,012	$66.7M	0.05%	+19.7%
67	AVIVA PLC#67 · 381,486 sh	381,486	$65.7M	0.10%	-0.6%
68	Vanguard Global Advisers#68 · 359,072 sh	359,072	$61.9M	0.03%	-0.5%
69	RHUMBLINE ADVISERS#69 · 351,786 sh	351,786	$60.6M	0.05%	-0.6%
70	VANGUARD ASSET MANAGEMENT, Ltd#70 · 344,472 sh	344,472	$59.3M	0.04%	+13.4%
71	BENJAMIN EDWARDS#71 · 341,125 sh	341,125	$58.8M	0.54%	+0.5%
72	JENNISON ASSOCIATES#72 · 337,122 sh	337,122	$58.1M	0.03%	-2.6%
73	FIRST ADVISORS#73 · 330,298 sh	330,298	$56.9M	0.03%	-3.0%
74	Capital International#74 · 316,825 sh	316,825	$54.6M	0.38%	-2.7%
75	NEW YORK STATE COMMON RETIREMENT FUND#75 · 291,757 sh	291,757	$50.3M	0.06%	-1.3%
76	COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS#76 · 288,789 sh	288,789	$49.7M	0.24%	-4.4%
77	Boston Walden#77 · 281,447 sh	281,447	$48.5M	0.37%	-13.4%
78	MILLENNIUM MANAGEMENT#78 · 272,772 sh	272,772	$47.0M	0.02%	+4.3%
79	NOMURA ASSET MANAGEMENT LTD#79 · 272,224 sh	272,224	$46.9M	0.10%	-6.0%
80	ROYAL BANK OF CANADA#80 · 270,808 sh	270,808	$46.7M	<0.01%	-46.3%
81	Quantinno Capital Management#81 · 268,788 sh	268,788	$46.3M	0.06%	+53.7%
82	Vest Financial#82 · 265,448 sh	265,448	$45.7M	—	-13.7%
83	BARCLAYS PLC#83 · 260,209 sh	260,209	$44.8M	<0.01%	-30.3%
84	ROYAL LONDON ASSET MANAGEMENT LTD#84 · 254,611 sh	254,611	$43.9M	0.08%	-0.2%
85	Clearbridge Investments#85 · 254,286 sh	254,286	$43.8M	0.04%	+14.6%
86	Munich Reinsurance Stock in Munich#86 · 251,761 sh	251,761	$43.4M	0.95%	0.0%
87	National Pension Service#87 · 250,465 sh	250,465	$43.1M	0.03%	+2.4%
88	abrdn plc#88 · 241,629 sh	241,629	$41.6M	0.06%	+5.9%
89	KBC Group NV#89 · 241,558 sh	241,558	$41.6M	—	-23.6%
90	PANAGORA ASSET MANAGEMENT#90 · 237,071 sh	237,071	$40.8M	0.13%	+3604.2%
91	BAHL & GAYNOR#91 · 236,682 sh	236,682	$40.8M	0.19%	-29.5%
92	STIFEL FINANCIAL#92 · 235,331 sh	235,331	$40.5M	0.03%	+1.0%
93	Partners Group Holding AG#93 · 230,844 sh	230,844	$39.8M	2.71%	-3.1%
94	GREAT WEST LIFE ASSURANCE#94 · 216,602 sh	216,602	$37.3M	0.06%	+15.2%
95	CITIGROUP#95 · 214,158 sh	214,158	$36.9M	0.01%	-11.4%
96	EXCHANGE TRADED CONCEPTS#96 · 210,342 sh	210,342	$36.2M	0.17%	+7.6%
97	CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM#97 · 209,558 sh	209,558	$36.1M	0.02%	-27.9%
98	LPL Financial#98 · 206,138 sh	206,138	$35.5M	<0.01%	+6.1%
99	M&G Plc#99 · 206,179 sh	206,179	$35.5M	0.18%	+2.4%
100	Aventail Capital Group#100 · 202,896 sh	202,896	$35.0M	2.01%	-18.1%

Funds that sold out of ATO in Q2 2026 (98)

Held ATO at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held ATO in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
FJARDE AP-FONDEN /FOURTH SWEDISH NATIONAL PENSION FUND32,500 sh	32,500	$6.0M
ING GROEP NV21,337 sh	21,337	$3.9M
PATTON FUND MANAGEMENT21,252 sh	21,252	$3.9M
AZZAD ASSET MANAGEMENT16,610 sh	16,610	$3.1M
Brendel Financial Advisors13,644 sh	13,644	$2.5M
BANQUE PICTET & CIE SA12,314 sh	12,314	$2.3M
Board of the Pension Protection Fund9,300 sh	9,300	$1.7M
Kovack Advisors8,465 sh	8,465	$1.6M
DRW Securities7,964 sh	7,964	$1.5M
WBI INVESTMENTS7,085 sh	7,085	$1.3M
SEGALL BRYANT & HAMILL7,056 sh	7,056	$1.3M
Holocene Advisors6,502 sh	6,502	$1.2M
17 CAPITAL PARTNERS6,423 sh	6,423	$1.2M
Golden State Equity Partners6,296 sh	6,296	$1.2M
GoalVest Advisory5,867 sh	5,867	$1.1M
FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A.5,665 sh	5,665	$1.0M
ARVEST INVESTMENTS5,641 sh	5,641	$1.0M
Friedenthal Financial5,283 sh	5,283	$975.9K
180 WEALTH ADVISORS5,195 sh	5,195	$959.6K
Vise Technologies4,557 sh	4,557	$763.9K
Lighthouse Investment Partners3,596 sh	3,596	$664.3K
Atom Investors3,449 sh	3,449	$637.1K
Sageworth2,978 sh	2,978	$550.1K
Tulsa Wealth Advisors2,863 sh	2,863	$528.9K
49 WEALTH MANAGEMENT2,812 sh	2,812	$519.4K
VARCOV2,657 sh	2,657	$490.8K
Virtu Financial2,555 sh	2,555	$472.0K
Intrua Financial2,475 sh	2,475	$457.1K
Third View Private Wealth2,259 sh	2,259	$417.3K
GTS SECURITIES2,139 sh	2,139	$395.1K
IMC-Chicago1,936 sh	1,936	$357.6K
NOMURA ASSET MANAGEMENT INTERNATIONAL1,900 sh	1,900	$351.0K
Scissortail Wealth Management1,780 sh	1,780	$328.8K
Advyzon Investment Management1,637 sh	1,637	$302.4K
BTS Asset Management1,581 sh	1,581	$292.1K
Harbour Capital Advisors1,510 sh	1,510	$275.6K
BankChampaign, National Association1,452 sh	1,452	$268.2K
Avantax Planning Partners1,420 sh	1,420	$262.3K
Peachtree Investment Partners1,417 sh	1,417	$261.7K
CIBC WORLD MARKET1,406 sh	1,406	$259.7K
Marshall Financial Group1,405 sh	1,405	$259.5K
Wealthcare Advisory Partners1,383 sh	1,383	$255.5K
Financial Security Advisor1,382 sh	1,382	$255.4K
Point1,343 sh	1,343	$248.1K
Snowden Capital Advisors1,317 sh	1,317	$243.3K
OneDigital Investment Advisors1,311 sh	1,311	$242.2K
Dynamic Technology Lab Private Ltd1,310 sh	1,310	$242.0K
CreativeOne Wealth1,301 sh	1,301	$240.3K
Teza Capital Management1,264 sh	1,264	$233.5K
Williamson Legacy Group1,262 sh	1,262	$233.1K
ONE WEALTH CAPITAL MANAGEMENT1,213 sh	1,213	$227.0K
PCM Encore1,189 sh	1,189	$219.6K
PATTON ALBERTSON MILLER GROUP1,172 sh	1,172	$216.5K
ANGELES WEALTH MANAGEMENT1,148 sh	1,148	$212.1K
SCHMIDT P J INVESTMENT MANAGEMENT1,143 sh	1,143	$211.1K
Colony Family Offices1,135 sh	1,135	$209.7K
Savvy Advisors1,131 sh	1,131	$208.9K
JB Capital1,129 sh	1,129	$208.6K
Heritage1,114 sh	1,114	$205.8K
Carter Financial Group1,106 sh	1,106	$204.4K
Maridea Wealth Management1,091 sh	1,091	$201.5K
Supplemental Annuity Collective of NJ1,087 sh	1,087	$200.8K
Banque Cantonale Vaudoise832 sh	832	$154.0K
Missouri & Investment800 sh	800	$147.8K
LOOMIS SAYLES & L P480 sh	480	$88.7K
Opal Wealth Advisors470 sh	470	$86.9K
PROFFITT & GOODSON367 sh	367	$67.8K
Wall Street Financial Group363 sh	363	$67.1K
Advisory Services Network346 sh	346	$64.0K
Sound Income Strategies303 sh	303	$56.2K
WFA of San Diego300 sh	300	$55.4K
Root Financial Partners235 sh	235	$43.4K
Annis Gardner Whiting Capital Advisors229 sh	229	$42.3K
Archer Investment207 sh	207	$38.2K
TWIN PEAKS WEALTH ADVISORS199 sh	199	$36.8K
Western Wealth Management185 sh	185	$34.2K
SWISS RE LTD72 sh	72	$13.3K
Crews Bank68 sh	68	$12.6K
Timothy G. Youngquist 2020 Irrevocable56 sh	56	$10.3K
Wealth Preservation Advisors41 sh	41	$7.6K
Kohmann Bosshard Financial Services39 sh	39	$7.2K
Park Place Capital33 sh	33	$6.1K
Destiny Wealth Partners27 sh	27	$5.0K
Clayton Financial Group18 sh	18	$3.3K
HAGER INVESTMENT MANAGEMENT SERVICES17 sh	17	$3.1K
Vermillion Wealth Management12 sh	12	$2.2K
Imprint Wealth11 sh	11	$2.0K
Harvest Fund Management , Ltd12 sh	12	$2.0K
Operose Advisors10 sh	10	$1.8K
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT7 sh	7	$1.3K
Legacy Wealth Managment4 sh	4	$739.00
Whipplewood Advisors4 sh	4	$739.00
Nvest Wealth Strategies3 sh	3	$555.00
Synergy Investment Management3 sh	3	$554.00
CURIO WEALTH2 sh	2	$369.00
Scarborough Advisors1 sh	1	$185.00
Napier Financial1 sh	1	$185.00
Elequin Securities235 sh	235	—

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.